/Engine/Plugins/Runtime/NetworkPrediction/Source/NetworkPrediction/Public/Services/NetworkPredictionInstanceMap.h
Generic associative container for instance data keyed off of theFNetworkPredictionIDSortedMap + SparseArray provides: -O(log n) add/remove. -Stable index that can be cached for O(1) lookup in various service acceleration structures -Data* are not stable out of this data structure
template<typename T> struct TInstanceMap